Brand: JVC
Category: Camcorder
Document Type: Manual
Language: EN
Available Languages: EN , ES
Manual for VN-H37U
Uploaded: Nov. 21, 2025, 7:40 p.m.
Warranty Information
Refer to the separate warranty documentation for details.
Getting Started
This manual explains the system setup using Internet Explorer and Built-in Viewer operations.
Camera Setting Requirements
Network: Ensure sufficient bandwidth. Maximum bit rate is about 20 Mbps. Consider JPEG file size, number of clients, and frame rates. H.264 bit rate depends on distribution numbers. Network issues like insufficient bandwidth, delay, jitter, and packet loss can affect performance.
Images: Supports H.264 Baseline and High Profiles. Features digital PTZ (Pan, Tilt, Zoom).
Operating Protocol: Supports ONVIF and PSIA standards. Default credentials are provided.
Internet Explorer Setting
How to Open the Setting Page: Enter the camera's IP address in Internet Explorer, then enter the username and password. The Built-in Viewer will display.
Setting Pages: Users can select languages. Different user access levels (admin, operator, user) grant access to different settings pages.
Operations
Built-in Viewer Operations: Includes screen configuration, picture quality settings, PTZ control, unicast/multicast settings, and on-screen display options. Audio monitor settings allow sending and receiving audio.
Other Setting: Rename the folder for captured files.
Exiting the Built-in Viewer: Click the [x] button to exit.
Troubleshooting
Provides solutions for common issues like inability to find the IP address, display settings, install the viewer, or issues with video playback and multicast streaming.
Troubleshooting and error codes
| Symptom | Possible Causes and Actions Taken | Reference Page |
|---|---|---|
| I do not know the IP address of the camera. |
IP address "192.168.0.2" and subnet mask "255.255.255.0" are set by default during factory shipment. • If you have set the [IP Setting] to “DHCP Enable" and if you start the camera on the LAN where no DHCP server exists, you can start the camera with the factory default IP address. • If you have a computer connected to the same LAN, you can search for the IP address using the search tool from the computer. |
Page 14 Instructions (IP Address Settings) |
| I cannot display the Settings page of the camera. | Check the current settings of Internet Explorer. Also, if you are using a proxy server, set the proxy server of the Internet Explorer. | Instructions (IP Address Settings) |
| I cannot install the Built-in Viewer. |
Check the current settings of Internet Explorer. The Built-in Viewer consists of the ActiveX software components. When you use the Built-in Viewer in the first time, the ActiveX software is installed. However, this installation may be rejected by the Anti-virus software settings. If it occurs, change the Anti-virus software settings first, and then install the Built-in Viewer. |
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| A warning message appears when I start the Built-in Viewer. |
The Built-in Viewer has an electronic signature for authentication by Verisign. If computers are connected to the Internet in the network environment, the digital certificate of the Built-in Viewer can be checked by VeriSign authentication. |
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| When I install the Built-in Viewer, the authentication by VeriSign appears. |
The Built-in Viewer has an electronic signature for authentication by Verisign. If computers are connected to the Internet in the network environment, the digital certificate of the Built-in Viewer can be checked by VeriSign authentication. |
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| Videos sent via TCP do not play. |
• The camera can transmit a maximum of 20 videos via TCP, and a maximum of 20 Built-in Viewers can be connected to 1 camera. If you need to monitor cameras in more places, use the multicast streaming. Multicast streaming of MPEG-4, JPEG, and H.264 is possible with this camera. The number of streams depends on the encoder setting. • If you set the JPEG Streaming to “Frame Rate”, the frame rate requested by clients are kept but the maximum number of streams is reduced. |
Page 4 Page 26 Page 66 Page 63 |
| Multicast images do not play. |
• Start manual multicast streaming from the [Multicast] page of the camera. • When you receive multicast streaming using the Built-in Viewer, check to see that multicast address and port number matches between the [Multicast] page of camera and the Built-in Viewer settings. Also, use the multicast streaming on the network supporting the IGMPv2. • Multicast streaming may be blocked by the Windows 7 Firewalls. In that case, you can go through the firewalls as follows. ① Select [Start] - [Control Panel] - [System and Security]. ② Open [Check firewall status] under [Windows Firewall]. ③ Open the [Advanced] menu and select [Inbound Rules] - [New Rule]. ④ In [New Inbound Rule Wizard], select “port” in [Rule type]. ⑤ In [Protocols and Ports], enter the port number for "Specific local ports". ⑥ Selects "Allow the connection” in [Actions]. ⑦ Selects applicable conditions in [Profile]. ⑧ Register an arbitrary character string for the "Name" in [Name]. |
Page 66 Page 110 Page 99 |
| The frame rate of displayed videos is low. |
When you are using the Built-in Viewer, check the viewer settings. • If the network has a narrow bandwidth, the frame rate will be limited. • If you set the video distribution setting to "Client Number" and if the number of streaming requests increases, the images are distributed at a frame rate lower than the preset rate. • If the distribution capability (Page 5) is exceeded, images are distributed at the lower frame rate so that the upper quantity limit of distribution data is not exceeded. |
Page 98 Page 109 Page 63 |
| A white zone appears in the Built-in Viewer. |
• If you set up Internet Explorer as follows, some Internet Explorer graphics may not appear and will be left white on some computers. In such a case, you can display Internet Explorer graphics normally by selecting as follows. If you select [Start] - [Control Panel] - [Appearance and Personalization] - [Display] - [Make text and other items larger or smaller] and select "100% (default)", the normal drawing will start. |
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| When 3D DNR is used, an afterimage appears. | When you use 3-dimensional noise reduction, in principle, an afterimage can appear if you shoot a moving object, however it is not a camera malfunction. | Page 20 |
| I cannot receive an alarm via TCP/UDP. |
• Multicast streaming may be blocked by the Windows 7 Firewalls. In that case, you can go through the firewalls as follows. ① Select [Start] - [Control Panel] - [System and Security]. ② Open [Check firewall status] under [Windows Firewall]. ③ Open the [Advanced] menu and select [Inbound Rules] - [New Rule]. ④ In [New Inbound Rule Wizard], select "port" in [Rule type]. ⑤ In [Protocols and Ports], enter the port number for "Specific local ports". ⑥ Selects "Allow the connection” in [Actions]. ⑦ Selects applicable conditions in [Profile]. ⑧ Register an arbitrary character string for the "Name" in [Name]. |
Page 100 |
| Multicast videos do not play. |
If your computer has multiple network cards, disable the network cards to which the camera is not connected. You can perform this as follows. ① Select [Start] - [Network Connections]. ② Right-click on the connection(s) not used for the camera, and select "Disable". |
Page 100 |
| Videos set to be exported are not saved to my computer. |
When using Windows 7 or Windows Vista for your OS, run Internet Explorer as an administrator. You can perform this as follows. ① Right-click Internet Explorer. ② Select [Run as administrator]. |